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High‑Energy and High‑Power Pseudocapacitor–Battery Hybrid Sodium‑Ion Capacitor with Na^(+) Intercalation Pseudocapacitance Anode

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Nano-Micro Letters 2021年第3期13卷 209-221页

作者： Qiulong Wei Qidong Li Yalong Jiang Yunlong Zhao Shuangshuang Tan Jun Dong Liqiang Mai Dong‑Liang Peng Department of Materials Science and Engineering Fujian Key Laboratory of Materials GenomeCollege of MaterialsXiamen UniversityXiamen 361005People’s Republic of China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070People’s Republic of China Shenzhen Geim Graphene Center Tsinghua Shenzhen International Graduate SchoolTsinghua UniversityShenzhen 518055People’s Republic of China Advanced Technology Institute University of SurreyGuildford Surrey GU27XHUK

High-performance and low-cost sodium-ion capacitors(SICs)show tremendous potential applications in public transport and grid energy ***,conventional SICs are limited by the low specific capacity,poor rate capability,and low initial coulombic efficiency(ICE)of anode ***,we report layered iron vanadate(Fe5V15O39(OH)9·9H2O)ultrathin nanosheets with a thickness of~2.2 nm(FeVO UNSs)as a novel anode for rapid and reversible sodium-ion *** to in situ synchrotron X-ray diffractions and electrochemical analysis,the storage mechanism of FeVO UNSs anode is Na+intercalation pseudocapacitance under a safe potential *** FeVO UNSs anode delivers high ICE(93.86%),high reversible capacity(292 mAh g^−1),excellent cycling stability,and remarkable rate ***,a pseudocapacitor–battery hybrid SIC(PBH-SIC)consisting of pseudocapacitor-type FeVO UNSs anode and battery-type Na3(VO)2(PO4)2F cathode is assembled with the elimination of presodiation *** PBH-SIC involves faradaic reaction on both cathode and anode materials,delivering a high energy density of 126 Wh kg^−1 at 91 W kg^−1,a high power density of 7.6 kW kg^−1 with an energy density of 43 Wh kg−1,and 9000 stable *** tunable vanadate materials with high-performance Na+intercalation pseudocapacitance provide a direction for developing next-generation highenergy capacitors.

关键词： Sodium-ion capacitors Pseudocapacitance Hybrid capacitors Two-dimensional materials Iron vanadate

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The effect of hierarchical single-crystal ZSM-5 zeolites with different Si/Al ratios on its pore structure and catalytic performance

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Frontiers of Chemical Science and Engineering 2021年第2期15卷 269-278页

作者： Yuexin Hou Xiaoyun Li Minghui Sun Chaofan Li Syed ul Hasnain Bakhtiar Kunhao Lei Shen Yu Zhao Wang Zhiyi Hu Lihua Chen Bao-Lian Su Laboratory of Living Materials at the State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China State Key Laboratory of Silicate Material for Architectures Wuhan University of TechnologyWuhan 430070China Laboratory of Inorganic Materials Chemistry(CMI) University of NamurB-5000 NamurBelgium Nanostructure Research Centre(NRC) Wuhan University of TechnologyWuhan 430070China Clare Hall University of CambridgeCambridgeCB39ALUK

Hierarchical single-crystal ZSM-5 zeolites with different Si/Al ratios(Hier-ZSM-5-x,where x=50,100,150 and 200)were synthesized using an ordered mesoporous carbon-silica composite as hard ***-ZSM-5-x exhibits improved mass transport properties,excellent mechanical and hydrothermal stability,and higher catalytic activity than commercial bulk zeolites in the benzyl alcohol self-etherification *** show that a decrease in the Si/Al ratio in hierarchical single-crystal ZSM-5 zeolites leads to a significant increase in the acidity and the density of micropores,which increases the final catalytic *** effect of porous hierarchy on the diffusion of active sites and the final catalytic activity was also studied by comparing the catalytic conversion after selectively designed poisoned acid *** poisoned Hier-ZSM-5-x shows much higher catalytic conversion than the poisoned commercial ZSM-5 zeolite,which indicates that the numerous intracrystalline mesopores significantly reduce the diffusion path of the reactant,leading to the faster diffusion inside the zeolite to contact with the acid sites in the micropores predominating in ZSM-5 *** study can be extended to develop a series of hierarchical single-crystal zeolites with expected catalytic performance.

关键词： hierarchical zeolites single crystalline interconnected pores improved diffusion performance benzyl alcohol self-etherification reaction

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Thermoelectric Energy Extraction in Motion Scenarios: Self-Powered Temperature and Pressure Detector in an Automobile Tire

SSRN

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SSRN 2023年

作者： Yang, Dongwang Wang, Jiang Xing, Yubing Hu, Kai Lyu, Jianan Li, Junhao Liu, Yutian Xiao, Yani Yan, Yonggao Tang, Xinfeng State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China Nanostructure Research Center Wuhan University of Technology Wuhan430070 China

This study employs finite element simulation methods to meticulously analyze the temperature distribution within swiftly moving car tires to assess energy recovery possibilities. Results show that at 20 °C ambient temperature and a speed of 120 km/h, the maximum tire surface temperature due to friction and rubber deformation hysteresis reaches 91.2 °C. Additionally, a micro thermoelectric generator (micro-TEG) installed on the aluminum alloy wheel hub, functioning as a heat sink, demonstrates an effective temperature difference of 3.9 °C. When subjected to a temperature difference of 20 °C, the micro-TEG module exhibits open circuit voltage and maximum power of 1.47 V/1.41V and 12.06 mW/11.58 mW in the flat and curved states, respectively. To ensure module reliability, rigorous testing is conducted, including 10,000 cycles of bending, barometric shocking, and 20 cycles of temperature variations ranging from 0-100 °C. Remarkably, the module exhibits minimal alterations in internal resistance and open circuit voltage throughout the testing process. Additionally, the module is seamlessly integrated with energy management and Bluetooth signal transmission circuits (total weight: 8.96 g). During simulated car driving, the temperature and pressure signals received by the mobile phone software demonstrate high accuracy, with over 94% consistency compared to the measured results. © 2023, The Authors. All rights reserved.

关键词： Open circuit voltage

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Thermoelectric Energy Extraction in Motion Scenarios: Self-Powered Temperature and Pressure Detector in an Automobile Tire

SSRN

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SSRN 2023年

关键词： Open circuit voltage

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In Situ Tin Doping to Enhance the Cycling Performance of 4.9 V LNMO Cathode materials

In Situ Tin Doping to Enhance the Cycling Performance of 4.9...

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IEEE International Conference on Power and Energy Applications (ICPEA)

作者： Yan Li Jinqiao Du Zhaojie Liang Jie Tian Pei Wang Wen Luo Electric Power Scientific Research Institute Shenzhen Power Supply Bureau Co. Ltd Shenzhen China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan China

ISBN: (数字)9798350356113

ISBN: (纸本)9798350356120

LiNi 0.5 Mn 1.5 O 4 (LNMO) cathode material has the advantages of high energy density (650 Wh/kg), high discharge voltage (4.7 V vs Li+/Li), low raw material cost, low pollution, and high lithium ion transmission efficiency. It is a potential high power, low cost cobalt-free lithium-ion battery cathode material. However, the capacity decline of LNMO during high voltage charge and discharge processes leads to short cycle life, which limits its wide application and commercialization. To address this issue, this article uses in-situ Sn doping to enhance the cycle stability of LNMO. By uniformly mixing acetate salts in stoichiometric ratio and using one-step spray drying method to prepare undoped and Sn-doped LNMO cathode materials, this study systematically investigates the structural changes, morphological characteristics, and electrochemical performance before and after doping. The capacity retention rates of Sn-doped LNMO materials after 350 cycles at 0.7C are 93.5% and 94.5%, respectively, significantly higher than the undoped 80.8%, indicating that in-situ Sn doping can significantly enhance cycle performance. This study demonstrates that the LiNi 0.5 Mn 1.46 O 0.04 electrode prepared by spray drying method, with its simple and straightforward synthesis process and excellent electrochemical performance, has the potential to become a high-performance lithium-ion batteries cathode material.

关键词： Lithium-ion batteries Salt Electric potential Doping High-voltage techniques Voltage Lithium Ions Discharges (electric) Cathodes

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Recent advances in microenvironment regulation for electrocatalysis

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National Science Review 2024年第12期11卷 38-58页

作者： Zhiyuan Xu Xin Tan Chang Chen Xingdong Wang Rui Sui Zhongbin Zhuang Chao Zhang Chen Chen Engineering Research Center of Advanced Rare Earth Materials Department of Chemistry Tsinghua University Research Institute of Petroleum Processing SINOPEC State Key Lab of Organic-Inorganic Composites Beijing University of Chemical Technology MOE International Joint Laboratory of Materials Microstructure Institute for New Energy Materials and Low-Carbon Technologies School of Materials Science and EngineeringTianjin University of Technology

High-efficiency electrocatalysis could serve as the bridge that connects renewable energy technologies,hydrogen economy and carbon capture/utilization, promising a sustainable future for humankind. It is therefore of paramount significance to explore feasible strategies to modulate the relevant electrocatalytic reactions and optimize device performances so as to promote their large-scale practical *** regulation at the catalytic interface has been demonstrated to be capable of effectively enhancing the reaction rates and improving the selectivities for specific products. In this review we summarize the latest advances in microenvironment regulation in typical electrocatalytic processes(including water electrolysis, hydrogen–oxygen fuel cells, and carbon dioxide reduction) and the related in situ/operando characterization techniques and theoretical simulation methods. At the end of this article, we present an outlook on development trends and possible future directions.

关键词： microenvironment regulation electrical double layer hydrogen electrocatalysis oxygen electrocatalysis CO reduction reaction

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The staggered-layer induced elasticity strengthening mechanism in flexible Bi2Te3

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Matter 2025年

作者： Huang, Xiege Wu, Luoqi Hu, Mingyuan Feng, Xiaobin Zhai, Pengcheng Li, Wenjuan Duan, Bo He, Jiaqing Li, Guodong Zhang, Qingjie Goddard, William A. Hubei Key Laboratory of Theory and Application of Advanced Materials Mechanics School of Physics and Mechanics Wuhan University of Technology Wuhan430070 China Guangdong Provincial Key Laboratory of Advanced Thermoelectric Materials and Device Physics Shenzhen Key Laboratory of Thermoelectric Materials and Department of Physics Southern University of Science and Technology Shenzhen518055 China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China Materials and Process Simulation Center California Institute of Technology PasadenaCA91125 United States

Wearable flexible devices require the development of thermoelectric (TE) materials with high strength, excellent elastic bendability, and superior ductility. Here we report a staggered-layer strategy that overcomes the strength-flexibility dilemma. Our findings indicate that the newly formed strong Bi–Bi covalent bond between the staggered layer leads to an average 40% increase in the bond energy of the van der Waals Te–Te bond. A large Poisson's ratio leads to a high maximum linear elastic strain (ΕEmax), enhancing shear strength by 83.3%, which is consistent with a 92.2% increase in micro-pillar compressive strength. The narrow stiffness gap and bond energy gap facilitate the coordinated deformation that maintains sustained linear elasticity during compression. Moreover, the low BFCs of the Te–Te and Te–Bi bonds (0.72 eV/Å2 and 3.85 eV/Å2) contribute to the experimentally observed bending flexibility. This staggered-layer-induced elasticity strengthening mechanism offers a promising strategy for the rational design of highly reliable wearable TE devices. © 2025 Elsevier Inc.

关键词： Compressive strength

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Dynamic response of B4C, TiB2 and TiB2-B4C under shock wave compression

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Ceramics International 2025年

作者： Shu, Zaiqin Jing, Qiang Wan, Mingming Zhang, Jinyong School of Physics and Mechanics Wuhan University of Technology Wuhan430070 China School of Material Science and Engineering Wuhan University of Technology Wuhan430070 China State Key laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China Inner Mongolian Metal Materials Research Institute Yantai264003 China

TiB2-B4C (TBC) has been widely utilized in lightweight armor due to its exceptional mechanical properties. The Hugoniot elastic limit (HEL) has been considered as an important dynamic property of ceramics. This paper presents the shock responses of pure B4C, pure TiB2, and TiB2-B4C composite. By microstructure analysis, the amorphization in B4C and dislocations in TiB2 at shock pressures around 37 GPa in the recycled debris were observed. The dislocations in TiB2 are believed to be the reason for ‘two HELs’ in TiB2. The addition of TiB2 has little effect on the shock properties of B4C, while the shock pressure exceeds HEL. Additionally, a failure wave was detected in the ceramics at shock pressures lower than HEL. A damage parameter was defined to quantify the extent of damage in the failure zone. The incorporation of TiB2 into B4C can significantly slow down failure propagation in TBC at pressure lower than HEL. Furthermore, the analysis of the damage parameter suggests that TBC exhibits superior impact resistance compared to pure B4C and TiB2. © 2025 Elsevier Ltd and Techna Group S.r.l.

关键词： Amorphization

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Progress in ceramic materials and structure design toward advanced thermal barrier coatings

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Journal of advanced Ceramics 2022年第7期11卷 985-1068页

作者： Zhi-Yuan WEI Guo-Hui MENG Lin CHEN Guang-Rong LI Mei-Jun LIU Wei-Xu ZHANG Li-Na ZHAO Qiang ZHANG Xiao-Dong ZHANG Chun-Lei WAN Zhi-Xue QU Lin CHEN Jing FENG Ling LIU Hui DONG Ze-Bin BAO Xiao-Feng ZHAO Xiao-Feng ZHANG Lei GUO Liang WANG Bo CHENG Wei-Wei ZHANG Peng-Yun XU Guan-Jun YANG Hong-Neng CAI Hong CUI You WANG Fu-Xing YE Zhuang MA Wei PAN Min LIU Ke-Song ZHOU Chang-Jiu LI State Key Laboratory for Mechanical Behavior of Materials School of Materials Science and EngineeringXi’an Jiaotong UniversityXi’an 710049China State Key Laboratory for Strength and Vibration of Mechanical Structures Department of Engineering MechanicsSchool of Aerospace EngineeringXi’an Jiaotong UniversityXi’an 710049China Xi’an Aerospace Composite Research Institute Xi’an 710025China AECC Beijing Institute of Aeronautical Materials Beijing 100095China School of Materials Science and Engineering Harbin Institute of TechnologyHarbin 150001China State Key Laboratory of New Ceramics&Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing 100084China Faculty of Materials and Manufacturing Key Laboratory of Advanced Functional MaterialsEducation Ministry of ChinaFaculty of Materials and ManufacturingBeijing University of TechnologyBeijing 100124China Faculty of Materials Science and Engineering Kunming University of Science and TechnologyKunming 650093China School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081China Xi’an Key Laboratory of High Performance Oil and Gas Field Materials School of Materials Science and EngineeringXi’an Shiyou UniversityXi’an 710065China Shi-Changxu Innovation Center for Advanced Materials Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China Shanghai Key Laboratory of Advanced High-temperature Materials and Precision Forming Shanghai Jiao Tong UniversityShanghai 200240China National Engineering Laboratory for Modern Materials Surface Engineering Technology the Key Lab of Guangdong for Modern Surface Engineering TechnologyInstitute of New MaterialsGuangdong Academy of SciencesGuangzhou 510650China School of Materials Science and Engineering Tianjin UniversityTianjin 300072China Integrated Computational Materials Research Centre Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 201899China State Key Laboratory of Advanced Processing and Recycling of

Thermal barrier coatings(TBCs)can effectively protect the alloy substrate of hot components in aeroengines or land-based gas turbines by the thermal insulation and corrosion/erosion resistance of the ceramic top ***,the continuous pursuit of a higher operating temperature leads to degradation,delamination,and premature failure of the top *** new ceramic materials and new coating structures must be developed to meet the demand for future advanced TBC *** this paper,the latest progress of some new ceramic materials is first ***,a comprehensive spalling mechanism of the ceramic top coat is summarized to understand the dependence of lifetime on various factors such as oxidation scale growth,ceramic sintering,erosion,and calcium–magnesium–aluminium–silicate(CMAS)molten salt ***,new structural design methods for high-performance TBCs are discussed from the perspectives of lamellar,columnar,and nanostructure *** latest developments of ceramic top coat will be presented in terms of material selection,structural design,and failure mechanism,and the comprehensive guidance will be provided for the development of next-generation advanced TBCs with higher temperature resistance,better thermal insulation,and longer lifetime.

关键词： thermal barrier coatings(TBCs) ceramic material degradation and failure structure design long lifetime

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碱性和酸性条件下均稳定的高效氧电催化剂:具有多活性中心的多孔纳米片复合材料

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Science China materials 2023年第4期66卷 1407-1416页

作者：夏雁楠程义王锐孟子寒迈耶昆庭赵川张海宁罗任李扬唐浩林 State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory Xianhu Hydrogen ValleyFoshan 528200China Hunan Provincial Key Laboratory of Nonferrous Value-added Metallurgy Central South UniversityChangsha 410083China School of Chemistry The University of New South WalesSydneyNew South Wales2052Australia

可逆的氧还原反应(ORR)和氧析出反应(OER)需要多种类型的活性中心来缓冲质子耦合/解耦的四电子过程.本文通过一种简单环保的熔融NaCl模板法合成了碳包覆FeNi合金、金属-N物种和N缺陷共掺杂的多孔纳米片(FeNi-N/PCN).得到的FeNi-N/PCN作... 详细信息

可逆的氧还原反应(ORR)和氧析出反应(OER)需要多种类型的活性中心来缓冲质子耦合/解耦的四电子过程.本文通过一种简单环保的熔融NaCl模板法合成了碳包覆FeNi合金、金属-N物种和N缺陷共掺杂的多孔纳米片(FeNi-N/PCN).得到的FeNi-N/PCN作为氧电催化剂在碱性(E_(1/2)为0.88 V_(RHE),E_(j=10)为1.57 V_(RHE))和酸性介质(E_(1/2)为0.78 V_(RHE),E_(j=10)为1.76 V_(RHE))中均表现出优异的ORR和OER性能.此外,该FeNi-N/PCN催化剂在锌空气电池中表现出224 m W c m^(-2)的功率密度和691 m A h g^(-1)的比容量,分别是Pt/RuO_(2)组合的1.34和1.20倍.这些优异的性能可以归因于具有多类型活性位点的层状碳纳米片结构,包括碳包覆FeNi合金、N缺陷和金属-N位点(M–N_(x)).

关键词：碳纳米片 FeNi合金电催化剂锌空气电池氧析出反应多孔纳米片碳包覆酸性介质

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